| 摘要 |
A method and system for determining the age of an object such as a product (5) containing volatile components, comprising the steps of: measuring a first strength of a first scent with a first electronic sensor (3), the decay rate of said first scent being known; measuring simultaneously a second strength of a second scent with a second electronic sensor (4), the decay rate of said second scent being known; calculating a current scent ratio ( sigma ) of the two scent strengths; and determining the age of the object from a reference time for which a reference scent ratio ( sigma 0)of said scent strengths has been registered. <IMAGE> |
